Mercedes-Benz S550 Timing Chain Tensioner Replacement Cost

Know what price you should pay to get your vehicle fixed.

The average cost for a Mercedes-Benz S550 timing chain tensioner replacement is between $669 and $776. Labor costs are estimated between $404 and $511 while parts are priced at $265. Estimate does not include taxes and fees.

Note about price: This service is typically done as part of a bigger, more expensive repair, so the estimate you see above may not represent your total cost. Some of these bigger related repairs are listed in the table below. Talk with a RepairPal Certified shop to learn which repairs may be right for you.

Repairs commonly associated with timing chain tensioner replacement

Best Practices

When the timing chain tensioner has failed, there may be damage to the timing chain guide rails or engine front cover, so the technician may recommend further inspection or changing the oil to check for debris.

For engines with more than one timing chain tensioner, they should be replaced as a set.

Common Symptoms

A worn tensioner will give the timing chain too much slack, and this may lead to a slapping noise, especially when first starting the engine.

A worn tensioner may also cause the check engine light to come on, and the engine may run rough, hesitate or stall.

Common Misdiagnoses

The sound of timing chain slap is similar to a tapping lifter at startup, so many times they are not replaced because the sound goes away after a few moments.

Timing Chain Tensioner Replacement Cost Estimates

The average cost for a Timing Chain Tensioner Replacement is between $669 and $776 but can vary from car to car.